/**** * Classes ****/ // Ammo class var Ammo = Container.expand(function () { var self = Container.call(this); var ammoGraphics = self.attachAsset('ammo', { anchorX: 0.5, anchorY: 0.5 }); }); // Define constants for ammo UI positioning and spacing // AmmoUI class var AmmoUI = Container.expand(function () { var self = Container.call(this); self.ammoCount = 10; self.ammoDisplay = []; self.init = function () { for (var i = 0; i < self.ammoCount; i++) { var ammo = new Ammo(); ammo.x = AMMO_X_POSITION; // Position to the left ammo.y = AMMO_Y_START_POSITION - i * (AMMO_SPACING + 30); // Increase gap between ammo units ammo.alpha = 1; self.ammoDisplay.push(ammo); self.addChild(ammo); } }; self.decreaseAmmo = function () { if (self.ammoCount > 0) { self.ammoCount--; self.updateAmmoAlpha(); } }; self.increaseAmmo = function () { if (self.ammoCount < 10) { self.ammoCount++; self.updateAmmoAlpha(); } }; self.updateAmmoAlpha = function () { for (var i = 0; i < self.ammoDisplay.length; i++) { self.ammoDisplay[i].alpha = i < self.ammoCount ? 1 : 0.5; } }; self.init(); }); // BackgroundContainer class var BackgroundContainer = Container.expand(function () { var self = Container.call(this); }); // // Bullet class var Bullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('bullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 20; self.direction = { x: 0, y: -1 }; // Default direction self.targetedEnemy = null; // Add a flag to store the targeted enemy self.update = function () { self.x += self.direction.x * self.speed; self.y += self.direction.y * self.speed; }; }); // Enemy class var Enemy = Container.expand(function () { var self = Container.call(this); var enemyGraphics = self.attachAsset('obstacle', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 1; self.acceleration = 0.005; // Decrease acceleration property self.scoreIncreased = false; // Add a flag to check if the score has been increased self.fullyInsideScreen = false; // Add a flag to check if the enemy is fully inside the screen // Add animation frames var frame1 = enemyGraphics; var frame2 = LK.getAsset('obstacle_2', { anchorX: 0.5, anchorY: 0.5 }); var currentFrame = 1; var lastFrameChange = Date.now(); self.update = function () { var dx = player.x - self.x; var dy = player.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > self.speed) { self.speed += self.acceleration; // Increase speed by acceleration self.x += dx * self.speed / distance; self.y += dy * self.speed / distance; self.fullyInsideScreen = self.x >= 0 && self.x <= 2048 && self.y >= 0 && self.y <= 2732; } // More precise hitbox check var selfBounds = self.getBounds(); var playerBounds = player.getBounds(); if (selfBounds.x < playerBounds.x + playerBounds.width && selfBounds.x + selfBounds.width > playerBounds.x && selfBounds.y < playerBounds.y + playerBounds.height && selfBounds.y + selfBounds.height > playerBounds.y) { // Collision detected LK.effects.flashScreen(0xff0000, 1000); LK.showGameOver(); } // Magnetic attraction and repulsion between enemies for (var i = 0; i < enemySpawners.length; i++) { if (enemySpawners[i] !== self) { var otherEnemy = enemySpawners[i]; var dxEnemy = otherEnemy.x - self.x; var dyEnemy = otherEnemy.y - self.y; var distanceEnemy = Math.sqrt(dxEnemy * dxEnemy + dyEnemy * dyEnemy); if (distanceEnemy < 200) { // Magnetic attraction var attractionForce = 0.1; // Adjust this value to control the attraction speed self.x += dxEnemy / distanceEnemy * attractionForce; self.y += dyEnemy / distanceEnemy * attractionForce; otherEnemy.x -= dxEnemy / distanceEnemy * attractionForce; otherEnemy.y -= dyEnemy / distanceEnemy * attractionForce; } if (distanceEnemy < 150) { // Repel overlapping enemies var repelForce = 1; // Adjust this value to control the repelling speed self.x -= dxEnemy / distanceEnemy * repelForce; self.y -= dyEnemy / distanceEnemy * repelForce; otherEnemy.x += dxEnemy / distanceEnemy * repelForce; otherEnemy.y += dyEnemy / distanceEnemy * repelForce; } } } // Handle frame animation if (Date.now() - lastFrameChange >= 100) { if (currentFrame === 1) { self.removeChild(frame1); self.addChild(frame2); currentFrame = 2; } else { self.removeChild(frame2); self.addChild(frame1); currentFrame = 1; } lastFrameChange = Date.now(); } }; }); // Explosion class var Explosion = Container.expand(function () { var self = Container.call(this); var explosionGraphics = self.attachAsset('explosion', { anchorX: 0.5, anchorY: 0.5, scaleX: 0.01, scaleY: 0.01 }); self.expandTime = 120; // 200 milliseconds self.startTime = Date.now(); self.hitboxIntersects = function (target) { var selfBounds = self.getBounds(); var targetBounds = target.getBounds(); return selfBounds.x < targetBounds.x + targetBounds.width && selfBounds.x + selfBounds.width > targetBounds.x && selfBounds.y < targetBounds.y + targetBounds.height && selfBounds.y + selfBounds.height > targetBounds.y; }; self.update = function () { var elapsedTime = Date.now() - self.startTime; var scale = Math.min(1, elapsedTime / self.expandTime); explosionGraphics.scale.set(scale, scale); if (scale >= 1) { // Check for collisions with enemies for (var i = enemySpawners.length - 1; i >= 0; i--) { if (self.hitboxIntersects(enemySpawners[i]) && enemySpawners[i].fullyInsideScreen) { var newExplosion = new Explosion(); newExplosion.x = enemySpawners[i].x; newExplosion.y = enemySpawners[i].y; midgroundContainer.addChild(newExplosion); if (!enemySpawners[i].scoreIncreased) { increaseScore(1, 1.1); enemySpawners[i].scoreIncreased = true; } LK.getSound('Pop_1').play(); enemySpawners[i].destroy(); enemySpawners.splice(i, 1); } } increaseScore(1, 1.2); self.destroy(); } }; }); // ForegroundContainer class var ForegroundContainer = Container.expand(function () { var self = Container.call(this); }); // MidgroundContainer class var MidgroundContainer = Container.expand(function () { var self = Container.call(this); }); // Obstacle class var Obstacle = Container.expand(function () { var self = Container.call(this); var obstacleGraphics = self.attachAsset('obstacle', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 5; self.update = function () { self.x += self.direction.x * self.speed; self.y += self.direction.y * self.speed; }; }); // Player class var Player = Container.expand(function () { var self = Container.call(this); var playerGraphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 0.5 }); self.shoot = function () { var newBullet = new Bullet(); newBullet.x = self.x; newBullet.y = self.y; // Find the closest enemy that hasn't been targeted var closestEnemy = null; var closestDistance = Infinity; for (var i = 0; i < enemySpawners.length; i++) { // Check if the enemy is within the screen bounds if (enemySpawners[i].x < 0 || enemySpawners[i].x > 2048 || enemySpawners[i].y < 0 || enemySpawners[i].y > 2732) { continue; // Skip enemies outside the screen area } var alreadyTargeted = bullets.some(function (bullet) { return bullet.targetedEnemy === enemySpawners[i]; }); if (alreadyTargeted) { continue; // Skip already targeted enemies } var distance = Math.sqrt(Math.pow(enemySpawners[i].x - self.x, 2) + Math.pow(enemySpawners[i].y - self.y, 2)); if (distance < closestDistance) { closestEnemy = enemySpawners[i]; closestDistance = distance; } } if (closestEnemy === null) { return; // No enemies to target } if (ammoUI.ammoCount <= 0) { console.log("Out of ammo!"); return; // Out of ammo } ammoUI.decreaseAmmo(); // Set the bullet's direction towards the closest enemy var dx = closestEnemy.x - self.x; var dy = closestEnemy.y - self.y; var magnitude = Math.sqrt(dx * dx + dy * dy); newBullet.direction = { x: dx / magnitude, y: dy / magnitude }; newBullet.targetedEnemy = closestEnemy; // Mark the enemy as targeted bullets.push(newBullet); midgroundContainer.addChild(newBullet); LK.getSound('Shoot').play(); }; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x7cc3ca //Init game with new background color }); /**** * Game Code ****/ // Initialize arrays and variables // Define constants for ammo UI positioning and spacing function increaseScore(points, scale) { LK.setScore(LK.getScore() + points); scoreTxt.setText(LK.getScore()); scoreTxt.scale.set(scale, scale); // Increase the size of the score text LK.setTimeout(function () { scoreTxt.scale.set(1, 1); // Reset the size of the score text after a short delay }, 50); } var AMMO_X_POSITION = 70; var AMMO_Y_START_POSITION = 2732 - 60; var AMMO_SPACING = 80; var AMMO_PADDING_X = 300; var AMMO_PADDING_Y = 400; var AMMO_SPAWN_WIDTH = 2048 - 1200; var AMMO_SPAWN_HEIGHT = 2732 - 1600; var AMMO_MIN_DISTANCE = 700; var bullets = []; var obstacles = []; var enemySpawners = []; var ammos = []; var backgroundContainer = game.addChild(new BackgroundContainer()); var background = LK.getAsset('background', { anchorX: 0.5, anchorY: 1.0, scaleX: 1, scaleY: 1, x: 2048 / 2, y: 2732 }); backgroundContainer.addChild(background); var midgroundContainer = game.addChild(new MidgroundContainer()); var foregroundContainer = game.addChild(new ForegroundContainer()); var ammoUI = foregroundContainer.addChild(new AmmoUI()); var player = foregroundContainer.addChild(new Player()); player.x = 2048 / 2; player.y = 2732 - 200; for (var i = 0; i < bullets.length; i++) { midgroundContainer.addChild(bullets[i]); } for (var i = 0; i < enemySpawners.length; i++) { midgroundContainer.addChild(enemySpawners[i]); } var scoreTxt = new Text2('0', { size: 150, fill: "#ffffff", stroke: "#000000", strokeThickness: 15 }); scoreTxt.anchor.set(0.5, 0.5); scoreTxt.y += 100; LK.gui.top.addChild(scoreTxt); // Handle touch down event game.down = function (x, y, obj) { player.shoot(); }; // Update game state game.update = function () { // Player moves towards the oldest Ammo if (ammos.length > 0) { var oldestAmmo = ammos[0]; // The oldest ammo is the first one in the array var dx = oldestAmmo.x - player.x; var dy = oldestAmmo.y - player.y; var distance = Math.sqrt(dx * dx + dy * dy); var speed = 10; if (distance > speed) { player.x += dx * speed / distance; player.y += dy * speed / distance; if (dx > 0) { player.scale.x = -1; // Flip the player asset on x-axis when moving right } else { player.scale.x = 1; // Revert the player asset on x-axis when moving left } } } // Update bullets for (var i = bullets.length - 1; i >= 0; i--) { bullets[i].update(); if (bullets[i].y < -50) { bullets[i].destroy(); bullets.splice(i, 1); } } // Update obstacles for (var j = obstacles.length - 1; j >= 0; j--) { obstacles[j].update(); if (obstacles[j].y > 2732 + 50) { obstacles[j].destroy(); obstacles.splice(j, 1); } } // Update explosions for (var e = midgroundContainer.children.length - 1; e >= 0; e--) { if (midgroundContainer.children[e] instanceof Explosion) { midgroundContainer.children[e].update(); } } // Check for collisions for (var k = bullets.length - 1; k >= 0; k--) { for (var l = enemySpawners.length - 1; l >= 0; l--) { // Check if the enemy is within the screen bounds if (enemySpawners[l].x >= 0 && enemySpawners[l].x <= 2048 && enemySpawners[l].y >= 0 && enemySpawners[l].y <= 2732 && bullets[k].intersects(enemySpawners[l])) { bullets[k].destroy(); var explosion = new Explosion(); explosion.x = enemySpawners[l].x; explosion.y = enemySpawners[l].y; foregroundContainer.addChild(explosion); LK.getSound('Pop_1').play(); enemySpawners[l].destroy(); bullets.splice(k, 1); enemySpawners.splice(l, 1); // Score update removed from bullet collision break; } } } // Spawn new enemy spawners if (LK.ticks % Math.max(10, 40 - Math.floor(LK.getScore() * 0.15)) == 0) { var newEnemy = new Enemy(); var edge = Math.floor(Math.random() * 4); switch (edge) { case 0: // Top edge newEnemy.x = Math.random() * 2048; newEnemy.y = -50; break; case 1: // Right edge newEnemy.x = 2048 + 50; newEnemy.y = Math.random() * 2732; break; case 2: // Bottom edge newEnemy.x = Math.random() * 2048; newEnemy.y = 2732 + 50; break; case 3: // Left edge newEnemy.x = -50; newEnemy.y = Math.random() * 2732; break; } enemySpawners.push(newEnemy); midgroundContainer.addChild(newEnemy); } // Generate new ammo to maintain 2 on the screen if (ammos.length < 2) { while (ammos.length < 2) { var newAmmo = new Ammo(); var validPosition = false; while (!validPosition) { newAmmo.x = AMMO_PADDING_X + Math.random() * (2048 - 2 * AMMO_PADDING_X); newAmmo.y = AMMO_PADDING_Y + Math.random() * (2732 - 2 * AMMO_PADDING_Y); validPosition = true; for (var i = 0; i < ammos.length; i++) { var dx = newAmmo.x - ammos[i].x; var dy = newAmmo.y - ammos[i].y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < AMMO_MIN_DISTANCE) { validPosition = false; break; } } } ammos.push(newAmmo); foregroundContainer.addChild(newAmmo); } } // Check for game over for (var m = obstacles.length - 1; m >= 0; m--) { if (obstacles[m].intersects(player)) { LK.effects.flashScreen(0xff0000, 1000); LK.showGameOver(); } } // Removed redundant collision check between player and enemy // Check for Ammo collection for (var n = ammos.length - 1; n >= 0; n--) { if (ammos[n].intersects(player)) { LK.getSound('Ammo').play(); // Play Ammo sound ammos[n].destroy(); ammos.splice(n, 1); ammoUI.increaseAmmo(); // Determine direction to the next ammo if (ammos.length > 0) { var nextAmmo = ammos[0]; var dx = nextAmmo.x - player.x; if (dx > 0) { player.scale.x = -1; // Flip the player asset on x-axis when moving right } else { player.scale.x = 1; // Revert the player asset on x-axis when moving left } } // Generate new ammo to maintain 3 on the screen var newAmmo = new Ammo(); var validPosition = false; while (!validPosition) { newAmmo.x = AMMO_PADDING_X + Math.random() * (2048 - 2 * AMMO_PADDING_X); newAmmo.y = AMMO_PADDING_Y + Math.random() * (2732 - 2 * AMMO_PADDING_Y); validPosition = true; for (var i = 0; i < ammos.length; i++) { var dx = newAmmo.x - ammos[i].x; var dy = newAmmo.y - ammos[i].y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < 400) { validPosition = false; break; } } } ammos.push(newAmmo); midgroundContainer.addChild(newAmmo); } } };

Melon Madness by Octo

Images

Sounds